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Nurmagomedov has struggled with his weight previously, coming in over the limit before his fight against Abel Trujillo.

He was also rushed to hospital before his scheduled bout with Tony Ferguson at UFC 209 which saw the fight scrapped.

Earlier this week, Nurmagomedov claimed his clash with Poirier will be the toughest of his career to date.

"Right now, when I watch Dustin Poirier I think it’s going to be my toughest challenge," he said.

"I always think like this. Even when I fight with Darrell Horcher, I think okay this guy is my toughest challenge. I don’t want to make a mistake; I don’t want to underestimate this guy. I think a lot of people underestimate his ground game.

Dustin Poirier did face the media (Image: REUTERS)

"I think he has good ground game, Dustin. He has good grappling, he has a good old school style. But he’s not bad on the ground, he’s not bad on feet, his kicking, his kneeing, his punching, his footwork, he’s very good fighter. I think it’s going to be very tough fight for me.

"I’m ready for this, like almost 100 days - last 100 days I trained so hard for this fight. Now only one week before the fight and I’m still focused.

"We’re almost there, the fight is around the corner and I’m very focused on Dustin Poirier, I’m not underestimating this guy."

Watch Khabib v Poirier exclusively live on BT Sport Box Office, Saturday 7 September. For more information on how to buy the fight, go to www.bt.com/btsportboxoffice.